Foxglove beardtongue (Penstemon digitalis) is a hardy perennial wildflower native to eastern North America and widely naturalized across Wisconsin. Growing three to five feet tall, it produces loose clusters of white to pale pink, tubular, two‑lipped flowers that resemble small foxgloves. These blossoms are especially important to early‑season pollinators: bumble bees, small native bees, and miner bees use the tubular flowers efficiently, while hummingbirds and butterflies visit opportunistically. The plant’s opposite, lance‑shaped leaves line the stem, with a basal rosette forming in spring.
Ecologically, foxglove beardtongue contributes nectar during a seasonal gap when few other prairie plants are blooming, supports specialist bee species, and provides structure and cover within open habitats. It thrives in prairies, meadows, woodland edges, fields, and disturbed areas such as roadsides and powerline corridors, preferring full sun to partial shade and well‑drained soils.
Sources:
USDA Plants Database — Penstemon digitalis profile
Illinois Wildflowers — Foxglove Beardtongue
Minnesota Wildflowers — Foxglove Beardtongue
Lady Bird Johnson Wildflower Center — Penstemon digitalis
Flora of North America — Penstemon digitalis
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